djvu | 8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2

General

Target
8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe
Size 758KB
Sample220325-kr78radeb4
SHA256 8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2
MD5 764431534fdc2d5932b2d8e689bcf1dd
SHA1 ba8ff72c034c233caade0ea8f0522d46c8c0115a
SHA512 16b88f949b7984c4d6ddf83ac8e39a66f9310de3038c32d364c30a828d8c3aaecdd8526f5c1a200cb0f7b2daf2f5ea977f6a6c5389e0db45236d75c8de3f9a84
MD5 SHA1 SHA512

Score

10^/10

djvu ransomware

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/test1/get.php

Attributes

extension
.kkia
offline_id
dYUDKE4rrBmSPsf8srHMsyP40jle9uyxDDCfdxt1
payload_url
http://zerit.top/dl/build2.exe

http://fuyt.org/files/1/build3.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-NdDG3HIUZp Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0425Jsfkjn

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 4 IoCs

resource	yara_rule
behavioral1/memory/1984-56-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/1984-55-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1996-59-0x0000000001EC0000-0x0000000001FDB000-memory.dmp	family_djvu
behavioral1/memory/1984-61-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1996 set thread context of 1984	1996	8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe	27

Program crash 1 IoCs

pid	pid_target	Process	procid_target
800	1984	WerFault.exe	27

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 1984	1996	8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe	27
PID 1996 wrote to memory of 1984	1996	8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe	27
PID 1996 wrote to memory of 1984	1996	8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe	27
PID 1996 wrote to memory of 1984	1996	8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe	27
PID 1996 wrote to memory of 1984	1996	8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe	27
PID 1996 wrote to memory of 1984	1996	8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe	27
PID 1996 wrote to memory of 1984	1996	8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe	27
PID 1996 wrote to memory of 1984	1996	8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe	27
PID 1996 wrote to memory of 1984	1996	8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe	27
PID 1996 wrote to memory of 1984	1996	8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe	27
PID 1996 wrote to memory of 1984	1996	8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe	27
PID 1984 wrote to memory of 800	1984	8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe	28
PID 1984 wrote to memory of 800	1984	8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe	28
PID 1984 wrote to memory of 800	1984	8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe	28
PID 1984 wrote to memory of 800	1984	8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe	28

C:\Users\Admin\AppData\Local\Temp\8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe
"C:\Users\Admin\AppData\Local\Temp\8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1996
- C:\Users\Admin\AppData\Local\Temp\8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe
  "C:\Users\Admin\AppData\Local\Temp\8e3dd78c8d7690816bef14a1be4811adff826dabcbf72adf26502b7dd0f57bd2.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1984
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1984 -s 192
    3⤵
    - Program crash
    PID:800

Network

MITRE ATT&CK Matrix

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Downloads

memory/1984-55-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1984-60-0x0000000075041000-0x0000000075043000-memory.dmp

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memory/1984-61-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/1996-54-0x00000000002C0000-0x0000000000351000-memory.dmp

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memory/1996-58-0x00000000002C0000-0x0000000000351000-memory.dmp

Download

memory/1996-59-0x0000000001EC0000-0x0000000001FDB000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads